using System;

using System.Collections.Generic;

using System.Text.RegularExpressions;

using System.Linq;

public class Program

{

    public static void Main()

    {

        //Building Data Set

        Random r = new Random();

        Console.WriteLine("Sorting Stuff Demo");

        List<Tuple<int,Guid>> mixOfThings = new List<Tuple<int,Guid>>();

        List<Guid> guids = new List<Guid>(5);

        for(int i = 0; i<5; i++){

            guids.Add(Guid.NewGuid());

        }

        for(int i = 0; i<15; i++){

            mixOfThings.Add(Tuple.Create(r.Next(0,5),guids[i%5]));

        }

        Console.WriteLine("Unsorted Collection");

        foreach(var i in mixOfThings){

            Console.WriteLine(i);

        }

        //What I interpreted the behavior to be in the PR

        List<Tuple<long,int,Guid>> prSort =  new List<Tuple<long,int,Guid>>();

        foreach(var item in mixOfThings){

            var computedOrder = long.Parse(Regex.Replace(item.Item1.ToString(), "[^0-9.]", "")) + long.Parse(Regex.Replace(item.Item2.ToString(), "[^0-9.]", "").Substring(0, 5));

            prSort.Add(Tuple.Create(computedOrder,item.Item1,item.Item2));

        }

        Console.WriteLine("Proposed in PR");

        Console.WriteLine(string.Join(Environment.NewLine,prSort.OrderByDescending(x => x.Item1)));

        //Variants using linq 

​

        var oProductId = mixOfThings.OrderByDescending(x => x.Item1);

        Console.WriteLine("Ordered By Product Id");

        foreach(var i in oProductId){

            Console.WriteLine(i);

        }

        var oGuid = mixOfThings.OrderByDescending(x => x.Item2);

        Console.WriteLine("Ordered By Guids");

        foreach(var i in oGuid){

            Console.WriteLine(i);

        }

        Console.WriteLine("Ordered by product then Guid");

        var oProductAndGuid = mixOfThings.OrderByDescending(x => x.Item1).ThenByDescending(x => x.Item2);

        foreach(var i in oProductAndGuid){

            Console.WriteLine(i);

        }

        Console.WriteLine("Ordered by Guid then Product");

        var oGuidAndProduct = mixOfThings.OrderByDescending(x => x.Item2).ThenByDescending(x => x.Item1);

        foreach(var i in oProductAndGuid){

            Console.WriteLine(i);

        }

    }

​

}